固定筛结构简单,制造容易,造价底,常用来分离较小的煤块。
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循环压耗有利于增加井底压力,所以发现溢流应立即停泵。()
A. 正确;
B. 错误。
请结合工作实际,试述商业银行开办理财业务存在的主要风险。
现代医学模式对健康服务的影响体现在从()扩大到()、从()扩大到()、从()扩大到()、从()扩大到()。
Which of the following statements is NOT true?()
A. Canute was chosen by the Witan as king of England.
B. Canute was a warrior king and fought many battles against the Normans.
Canute divided power between Danes and Saxons.
D. Canute forced Malcolm II,king of the Scots,to recognize him as overlord.